Home / 150,439.68-207,602.28-82,455.15

Finding the Fourth Proportional to 150,439.68, 207,602.28 and 82,455.15

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Solution

The fourth proportional to 150,439.68, 207,602.28 and 82,455.15 is: 113,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,439.68 : 207,602.28 = 82,455.15 : x
  2. Step 2: Convert to fraction form
    150,439.68/207,602.28 = 82,455.15/x
  3. Step 3: Cross multiply
    150,439.68x = 207,602.28 × 82,455.15
  4. Step 4: Simplify right side
    150,439.68x = 17,117,877,137.74
  5. Step 5: Solve for x
    x = 17,117,877,137.74/150,439.68
  6. Step 6: Final answer
    x = 113,785.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.